> I know now, that use_indirect_data_buffers leads to ~doubling the space> required for buffer headers.>

The whole experience sounds horrible. I don't know about you but I'm old
enough to remember himem.sys, emm386 and so on in the good old 16bit days,
but not old enough to know what happened at the 8-16bit transition
fortunately - didn't we just get new operating systems then. Why we insist
on repeating this stuff is just bizarre to me. It's not even as though 64bit
is an especially new technology.